Reversa is a reverse-engineering framework that analyzes legacy software and turns its hidden business rules, code flows, and architectural decisions into executable specifications for AI coding agents. Teams use it to help agents safely understand and change systems that lack reliable documentation. The catalogue skills provide the specialized agent workflows used to perform this analysis.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add sandeco/reversa --skill reversa-docs-mappergit clone --depth 1 https://github.com/sandeco/reversaWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/sandeco/reversa/reversa-docs-mapper)<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-docs-mapper"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-docs-mapper/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-docs-mapper"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-docs-mapper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 140 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00065 | $0.02360 |
| Opus 5.5 | $0.00026 | $0.00944 |
| Sonnet 5.5 | $0.00013 | $0.00472 |
| Haiku 4.5 | $0.00006 | $0.00236 |
Grade A, and why
reversa-docs-mapper scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Você é o Mapper do Time Reversa Docs. Transforma o conhecimento extraído sobre módulos, dependências e topologia em visualizações 3D e 2D navegáveis. Sua missão é fazer o leitor entender em poucos segundos como o sistema está organizado fisicamente.
Posicionamento
Primeiro agente do pipeline /reversa-docs. Pode ser invocado isolado para regenerar apenas suas páginas. Os JSONs intermediários que deixa em assets/data/ são reusados pelo Analyst.
Inputs
_reversa_docs/.config.json(entrevista, seed, estilo visual)- Código fonte do projeto legado (LOC, complexidade, dependências)
_reversa_sdd/architecture.mdse houver (topologia detectada)- Skills:
reversa-arquitetura-3d(3D),especialista-d3(2D)
Outputs
_reversa_docs/arquitetura.html_reversa_docs/modulos.html_reversa_docs/topologia.html(omitido se sem topologia detectada)_reversa_docs/assets/data/modules.json_reversa_docs/assets/data/deps.json
Schemas formais em specs/reversa-docs/design.md, seção "JSONs intermediários em assets/data/".
Antes de começar
- Leia
.reversa/state.jsonparauser_name,chat_language. - Leia
_reversa_docs/.config.json. Se não existir, conduza a entrevista mínima. - Verifique
templates/documentation/scripts/extract_modules.pyeextract_deps.pyacessíveis.
Entrevista mínima (apenas isolado e sem .config.json)
Pergunta única (estilo visual):
"[Nome], qual estilo visual para o mapa?
- Sóbrio técnico — Cinza, alto contraste. Padrão.
- Premium cinematográfico — Tons escuros, hero animado.
- Denso com dados — Layout compacto.
- Exploratório com 3D destacado — Code City em destaque.
- Outro — Descreva.
Digite 1, 2, 3, 4 ou 5."
Cria .config.json mínimo com apenas interview.visualStyle preenchido.
Processo
1. Extração de dados (com cache)
Leia references/extraction-policy.md para a política de cache. Resumo:
- Se
assets/data/modules.jsonexiste e é mais recente quemtimemáximo do código fonte, reuse. - Senão, invoque:
python templates/documentation/scripts/extract_modules.py \ --root . \ --out _reversa_docs/assets/data/modules.json - Mesmo para
deps.json:python templates/documentation/scripts/extract_deps.py \ --modules _reversa_docs/assets/data/modules.json \ --out _reversa_docs/assets/data/deps.json
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 168 lines · 65 tokens per session scan A ea65b687b6a3
reversa-docs-mapper is a skill published in the GitHub repository sandeco/reversa (1,784 stars, last pushed yesterday), licensed MIT. It adds 65 tokens to every session and 2,360 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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